because when you add an object to fluid it displaces the water which therefor makes the level go down
the object would float on top of the water so the water level would change because of the heavy object
i think that vol of water underneath the needle when it is dropped on water parallely is more which prevents the needle from sinking.
Gravity Gravity Density of the marble stone being greater than water causes it to sink by gravitational force.
Water reduces the friction that would normally be present between the marble and your feet.
I think that the temperature required to boil water is lower at high altitudes (where the atmospheric pressure is lower) than at sea level.
No because the marble was just added to make the water level rise
1.72 ml
Either the water is too hot or too cold it needs to be room temperate
All of the above? You can say the same thing in many ways. All of the following are different ways of saying the same thing, and all are correct: The marble sinks because the marble weighs more that an equivalent volume of water. The marble sinks because its density is greater than the density of water. The marble sinks because it has a greater mass than than same volume of water (and there is gravity/acceleration).
You take a graduated cylinder,or anything you can measure water in, and put water in it. You drop the marble in and the change in water height is your volume. For example if the cylinder is filled up to 10ml and after you drop in the marble it goes to 15ml then the marble has a volume of 5ml cubed.
viscosity
The chemical equation is:Ca(OH)2 + CO2 = CaCO3 + H2O
no, a physical change
No, marble is made by heating and squashing limestone while basalt is produced out of volcanoes. One can not change into the other by immersing it in sea water.
He dropped in stones to raise the water level.
Rocks change water level bye ............................the weight of the rocks makes the water highterr ?
This question is not clear.